Horticulture is the industry and science of plant cultivation, including the process of preparing soil for the planting of seeds, tubers, or cuttings. Horticulturists work and conduct research in the disciplines of plant propagation and cultivation, crop production, plant breeding and genetic engineering, plant biochemistry, and plant physiology. Horticulture usually refers to gardening on a smaller scale, while agriculture refers to the large-scale cultivation of crops. This book presents topical data on horticulture including: the mechanisms of cadmium toxicity in crops, using grafting techniques at the seedling stage to overcome soil-borne diseases, the application of biotechnology tools in the conservation of critically endangered plant species, salinity tolerance of ornamental horticultural species, and others.